Add equality and comparison methods.

rq/queue.py

@@ -1,4 +1,5 @@
 import uuid
+from functools import total_ordering
 from pickle import loads, dumps
 from .proxy import conn
 
@@ -35,6 +36,7 @@ class Job(object):
         return self.func(*self.args, **self.kwargs)
 
 
+@total_ordering
 class Queue(object):
     redis_queue_namespace_prefix = 'rq:'
 
@@ -118,5 +120,21 @@ class Queue(object):
         return job
 
 
+    # Total ordering defition (the rest of the required Python methods are
+    # auto-generated by the @total_ordering decorator)
+    def __eq__(self, other):
+        if not isinstance(other, Queue):
+            raise TypeError('Cannot compare queues to other objects.')
+        return self.name == other.name
+
+    def __lt__(self, other):
+        if not isinstance(other, Queue):
+            raise TypeError('Cannot compare queues to other objects.')
+        return self.name <= other.name
+
+    def __hash__(self):
+        return hash(self.name)
+
+
     def __str__(self):
         return self.name

tests/test_rq.py

@@ -60,6 +60,19 @@ class TestQueue(RQTestCase):
         q = Queue()
         self.assertEquals(q.name, 'default')
 
+
+    def test_equality(self):
+        """Mathematical equality of queues."""
+        q1 = Queue('foo')
+        q2 = Queue('foo')
+        q3 = Queue('bar')
+
+        self.assertEquals(q1, q2)
+        self.assertEquals(q2, q1)
+        self.assertNotEquals(q1, q3)
+        self.assertNotEquals(q2, q3)
+
+
     def test_queue_empty(self):
         """Detecting empty queues."""
         q = Queue('my-queue')